Firearm.



H, HENGELHAUPT L L. MULLER.

FIREARM. APPLLCATION FILED APR-30,1915.

Patented July 27, 1915.

2 SHEETSSHEET I- 5] m uemiiovj tl/zaapf wanes 9% COLUMBIA -ANOGRAPH C0-, WASHINGTON. D. c.

H. HENGELHAUPT & L. MULLER.

FIREARM.

APPLICATION FILED APR. 30. 1915.

2 SHEETSSHEET 2 Patented July 27, 1915.

COLUMBIA PLANOGRAPH C0, WASHIN UNITE sn'rns FIREARM.

Application filed April 30, 1915.

To all whom it may concern:

Be it known that we, HUGO HENGELHAUPT and LEOPOLD MoLLER, subjects of the Emperor of Germany, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Firearms, of which the following is a specification.

Ourinvention relates to improvements in fire arms, and more particularly to an improved rifle having a revolving cylinder carried by the barrel, the barrel and frame hinged together and connected by an improved; locking bolt.

A further object is to provide improved safety mechanism which is adapted to be ,moved to a position to hold the hammeragain'st movement, and hence prevent possibility of accidental discharge of the fire arm.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1 .is a view in side elevation illustrating our improved fire arm showing in full line the normal position of the barrel and in dotted lines the position of the barrel when the fire arm is broken. Fig. 2 is a view in elevation partly in section on an enlarged scale illustrating various novel features of our improved fire arm. Fig. 3 is a fragmentary view in elevation showing the end of the hammer arbor. Fig. dis a top plan view of Fig. 2. Fig. 5 is a view in section on an enlarged scale on the line 55 of Fig. 1 showing the safety device in position to hold the hammer against accidental movement. Fig. 6 is a view similar to Fig. 5 showing the safety device in its position releasing the hammer. Fig. 7 is a perspective view of the barrel locking bolt. Fig. 8 is a perspective view of the hammer. Fig. 9 is a perspective view of the movable rod constituting a part of the safety device, and Fig. 10 is a perspective view of the hammer arbor.

1 represents the metal frame of our improved fire arm and 2 is the barrel connected Specification of Letters Patent.

Patented July 27, 1915.

Serial No. 24,879.

by a removable hinge bolt 3 with the frame and carrying a revolving cylinder 41-.

5 represents our improved spring bolt which engages in a socket 6 in a rib 7 constituting a part of the barrel 2, and normally holding the barrel in its operative position. When the spring bolt 5 is withdrawn, the rifle can be broken as shown in dotted lines in Fig. 1, so that the cartridges or shells in the cylinder can be ejected. The spring bolt 5 is screwed into a T-head S, recessed in its front face as shown at 9, to bear against the frame 1, and having enlarged milled ends 10 constituting thumb and finger grips to enable the spring bolt to be readily withdrawn when grasped by the operator.

A head 11 having a screw-driver receiving groove therein, is formed on the end of the bolt 5, and a coiled spring 12 is located on the bolt and bears at one end against the head 11, and at its other end against a cross bar 13 secured to frame 1, and through which the bolt 5 projects. The head 11 is rounded, so that it readily finds an entrance in the socket 6, and securely holds the barrel in normal position, but when it is desired to break the gun, it is simply necessary to draw the spring bolt rearwardly out of the socket 6 as will be readily understood.

14: represents a hammer which is adapted to strike a firing pin 15 to discharge the cartridges in the cylinder, and this hammer is pressed forwardly by a coiled spring 16 and is controlled by the ordinary trigger 17, the latter having a member 18 located in a recess 19 in the hammer and adapted to force the hammer rearwardly, and then release the same to allow the hammer to move forwardly and strike the firing pin as is customary with fire arms of this character. The hammer 14: is provided with an opening 20 constituting a bearing for a tubular arbor 21. One end of this arbor is screw-threaded as shown at 22, and engages in a threaded opening 23 in one side of frame 1, securely holding the arbor against longitudinal movement, and in order to facilitate the positioning and removal of the arbor, one end thereof is formed with screwdriver receivpin 25, and a removable head 30 is screwed onto the other end of the rod.

The rod 25 above referred to is appreciably longer than the frame 1 is wide, and is capable of a longitudinal movement sufficient to position the key 26in the recess 28 of hammer 14, or to move the key entirely out of said recess 28. When the key 2 6" is in the recess 28, the hammer is securely locked against pivotal movement on the arbor 21, and hence the fire arm cannot be accidentally discharged. When the rod 25 is moved longitudinally, so as to withdraw the key 26 fromthe recess 28, the fire arm can be discharged in the ordinary way.

F igs. 5 and 6 illustrate clearly the two positions of the rod 25, and this rod-25 together with its cooperating parts, we have above referred-to as our improved safety device, as suchmechanism renders it possible tosecurely lock the hammer to prevent accidental discharge of the fire arm.

Various slight changes might be made in the general form and arrangement of parts described without departing from our invention, and hence we do not limit ourselves to the precise details set forth, but consider ourselves at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a fire arm, the combination with a frame, a barrel hingedto the frame, and carrying a revolving cylinder, a spring pressed bolt on the frame having a T-head at one end with finger-receiving end portions, and said barrel having a rib thereon with a socket therein to receive the spring bolt, substantially as described.

2. In a fire arm, the combination with a frame, a barrel hinged to the frame and carrying a revolving cylinder, a rib on the barrel having a socket therein, a cross bar on the frame having an opening therein, a bolt projected through the opening and having an enlarged head at its inner end adapted to belocated in the socket of the rib, a spring on the bolt between the head and the cross bar normally holding the 'bolt in the socket, and a T-head secured on the rear end of the bolt, said T-head having a recess in its forward face receiving the cross bar and having enlarged roughened finger and thumb gripping ends, substantially as described.

V arbor and having-a recess therein, and a rod movable in the arbor and having a'locking key. projecting through the slot inthe. arbor and adapted to be positioned in'the" recess in the hammer or removed therefrom,

substantially as described.

v fg IIlfi; fire arm, the combination with a frame, a tubular arbor located in openings in the frame'and held against longitudinal movement, said arbor having a longitudinal groove therein, a hammer havingan opening receiving thearbor, whereby the ham mer is pivotally supported on the arbor, said hammer having a recess in the wall of f said openinga'dapted to register with-the slot in the arbor-when the hammer is in its normal position, and a device movable through the arbor and adapted to project as described.

5. In a fire arm, the combination with a frame, a tubular arbor located in openings in the frame and held against longitudinal movement, said arbor having a longitudinal groove therein, a hammer having a'n-opening receiving the arbor, whereby the haminto the recess in-the hammer, substantiallymer is pivotally supported on the arbor,

saidhammer having a recess in the wall of said opening adapted-to register with the slot in the arbor when the hammer is' in its normal position, a rod longer thanthe arbor-*- and having a key thereon movable in the slot in the arbor and adapted to be moved into or out of therecess in the hammer, substantially as described. I p

6. In a firearm, the combination with a frame, a tubular arbor located in openings in the frame and held against longitudinal movement, said arbor having alongitudinal groove therein, a hammer having an opening receiving the arbor, whereby the hammer is pivotally supported on the arbor, said hammer having a recess in the wall of said opening adapted to register with the slot in the arbor when the hammer is in its normal position, a rod longer than the arbor and having a key. thereon movable in the slot in the arbor and adapted to be moved which is screw-threaded, a tubular arbor having a screw-driver receiving recess in one end, and at its other end externally screw-threaded engaging in the threads of the said opening, said arbor having alongitudinal slot therein, a. hammer pivotally supported on the arbor and having a recess names to this specification in the presence of adapted to register with the slot, and a locktwo subscribing Witnesses.

ing device movable indthe arbor and having HUGO H H a key thereon adapte to be projected into the recess in the hammer and secure the lat- LEOPOLD MOLLER' ter against movement, substantially as de- Witnesses: scribed. MARIE J AoKsoN. In testimony whereof We have signed our CHAS. E. POTTS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

